practical 2 (A2)

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Code

#include<stdio.h> //header file
void main() //main function
{
char source_file[30],ch,ch1,ch2,ch3,ch4;
int i=0,j=0;
FILE *source; //file pointer
printf("\nEnter the File Name:");
scanf("%s",source_file);
source=fopen(source_file,"r");
if(source==NULL)
{
printf("File does not exists");
}
/*
While Loop
*/
while((ch=getc(source))!=EOF)
{
if(ch=='/')
{
ch1=getc(source);
if(ch1=='/' || ch1=='*')
 {
if(ch1=='/')
{
 i++;
printf("\nSingle Line Comment :
%d",i);
 printf("\n%c%c",ch,ch1);
 while((ch2=getc(source))!='\n')
 {
 printf("%c",ch2);
 }
printf("\n");
}
else
{
j++;
 printf("\nMultiline comment : %d",j);
 printf("\n%c%c",ch,ch1);
 while((ch3=getc(source))!='*')
{
 printf("%c",ch3);
 }
printf("%c",ch3);
if((ch4=getc(source))=='/')
 printf("%c\n",ch4);
}
 }
}
}
/*
End Of While Loop
*/
}

Make a input file as asm.c

#include<stdio.h>
#include<stdlib.h>
int main( )
{
    int a , b , c , ch ;
    printf ( " \n Enter the two numbers " ) ;
    scanf( " %d%d " , & a , & b ) ;
    printf ( " \nMENU\n1.ADD\n2.Sub\n3.MUL " ) ;
    scanf ( " %d " , & ch ) ;
    c = a + b ;
    //adding two numbers
    if ( ch == 0 )
    {
        printf ( " Goodbye " ) ;
    }
}

Output